Convert Chatham Standard Time to French Guiana Time - Quick & Accurate
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Hover over any hour to see corresponding time in both zones
To schedule a meeting between CHAST and GFT:
Pro Tip: Schedule calls during the overlap window for optimal convenience for both time zones
| CHAST Time | GFT Time | Context |
|---|---|---|
| 12:00 AM | 07:15 AM | Midnight CHAST |
| 01:00 AM | 08:15 AM | Late Night |
| 02:00 AM | 09:15 AM | Late Night |
| 03:00 AM | 10:15 AM | Late Night |
| 04:00 AM | 11:15 AM | Late Night |
| 05:00 AM | 12:15 PM | Late Night |
| 06:00 AM | 01:15 PM | Early Morning CHAST |
| 07:00 AM | 02:15 PM | Night Time |
| 08:00 AM | 03:15 PM | Night Time |
| 09:00 AM | 04:15 PM | Work Starts CHAST |
| 10:00 AM | 05:15 PM | Night Time |
| 11:00 AM | 06:15 PM | Night Time |
Chatham Islands
Pacific/Chatham
Cayenne
America/Cayenne
GFT (French Guiana Time) is 16.75 hours behind CHAST (Chatham Standard Time). This means when it's 12:00 PM in Chatham Islands (CHAST), it's 7:15 PM in Cayenne (GFT).
The best time to call from CHAST to GFT is during overlapping business hours. For CHAST callers, schedule between 12:00 PM - 5:00 PM CHAST to ensure both parties are within standard business hours.
The time difference may change during daylight saving transitions if one region observes DST while the other doesn't. Chatham Standard Time (UTC+12:45 (CHAST) / UTC+13:45 (CHADT)) and French Guiana Time (UTC-3) may have different DST schedules.
CHAST includes cities like Chatham Islands. GFT includes cities like Cayenne. Both time zones cover important business and cultural centers.
In 2025, DST in North America starts on March 9 at 2:00 AM and ends on November 2 at 2:00 AM. Other regions may have different DST schedules or not observe DST at all.